Evaluasi Teknik Steganografi dan Efektivitasnya dalam Perlindungan Informasi
DOI:
https://doi.org/10.62671/jikum.v2i1.142Keywords:
Steganography, Information Security, LSB, DCT, PSNR.Abstract
Information security is a critical issue in the digital era, particularly in the exchange of confidential data over public networks. Steganography offers a solution by hiding information within digital media so that its existence is not detected. This study aims to evaluate the effectiveness of two popular steganography techniques: Least Significant Bit (LSB) and Discrete Cosine Transform (DCT) in terms of imperceptibility and robustness. The method used involves embedding text messages into image media and measuring quality using Mean Squared Error (MSE) and Peak Signal- to-Noise Ratio (PSNR). The results show that the LSB technique offers better imperceptibility with a higher average PSNR value (55 dB) compared to DCT (42 dB). However, DCT demonstrates superior robustness against compression attacks and noise addition. This research concludes that the selection of steganography techniques must be adjusted to specific needs, balancing hiding capacity and resistance to manipulation.
References
Garno, G., Rizal, A., Solehudin, A., Ekstanza, R., & Yusup, D. (2021). Comparison of Steganography Using the Discrete Cosine Transform Method on Image Based Bilinear, Nearest Neighbor and Spline Interpolation. JUITA: Jurnal Informatika, 9(1), 73-82. http://dx.doi.org/10.30595/juita.v9i1.7302
Hakim, F. N., Abduljaleel, I. Q., & Ali, M. A. (2024). Enhancing Data Security through Digital Image Steganography: An Implementation of the Two Least Significant Bits (2LSB) Method. International Journal of Graphic Design, 2(2), 224-230. https://doi.org/10.5121/ijgd.2024.224
Kurniawan, J. C., Nugraha, A., Prayogo, A. I., & Novanto, T. F. (2024). Improving Data Embedding Capacity in LSB Steganography Utilizing LSB2 and Zlib Compression. Sinkron: Jurnal dan Penelitian Teknik Informatika, 8(1), 174-181. https://doi.org/10.33395/sinkron.v9i1.13185
Malese, L. (2021). Penyembunyian Pesan Rahasia Pada Citra Digital dengan Teknik Steganografi Menggunakan Metode Least Significant Bit (LSB). Jurnal Ilmiah Wahana Pendidikan, 7(5), 343-354. https://doi.org/10.5281/zenodo.5566060
Prakoso, K. Y. S., Chrisnanto, Y. H., & Kasyidi, F. (2024). Steganografi Metode Inverted LSB Menggunakan Pola Adaptif dan DCT. JIRE (Jurnal Informatika & Rekayasa Elektronika), 7(2), 1-10. https://doi.org/10.36595/jire.v7i2.1222
Purnomo, B. Y., Minarno, A. E., & Sari, Z. (2024). Analisa Perbandingan LSB Steganografi antara Shifting dan Random Color. Jurnal Repositor, 3(2), 91-100. https://doi.org/10.22219/repositor.v3i2.1055
Putra, I. P. K., & Supriana, I. W. (2024). Analisis Perbandingan Kualitas Citra Hasil Steganografi DCT dan LSB Berdasarkan Parameter RMSE dan PSNR. Jurnal Nasional Teknologi Informasi dan Aplikasnya (JNATIA), 2(3), 609-616. https://doi.org/10.24843/JNATIA.2024.v02.i03.p20
Ramyashree, P. S., Venugopala, S., Raghavendra, S., & Ashwini, B. (2024). CrypticCare: A Strategic Approach to Telemedicine Security Using LSB and DCT Steganography for Enhancing the Patient Data Protection. IEEE Access, 12, 101166-101183. https://doi.org/10.1109/ACCESS.2024.3430546
Ratnasari, A. P., & Rendani, F. A. (2021). Steganography on Digital Color Image Using Modulo Function and Pseudo- Random Number Generator. International Journal on Advanced Science, Engineering and Information Technology, 11(6), 2470-2475. http://dx.doi.org/10.18517/ijaseit.11.6.12687
Wijaya, B. A., Manalu, A. J., Tarigan, B. A., & Silitonga, L. S. (2021). Steganography Text Message Using LSB and DCT Methods. Jurnal Mantik, 5(3), 1825-1832. https://doi.org/10.35335/mantik.v5i3.1360
